Vladimirite (original) (raw)
A valid IMA mineral species - grandfathered
About VladimiriteHide
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Formula:
Ca4(AsO4)2(AsO3OH) · 4H2O
Colour:
Usually colorless to white, also pale rose
Lustre:
Sub-Vitreous, Silky, Pearly
Specific Gravity:
3.12 - 3.15
Crystal System:
Monoclinic
Name:
Named by E. I. Nefedov in 1953 after its discovery locality, Vladimirskoe deposit, Khovu-Aksy, Tuva Republic, Russia.
The originally proposed formula Ca5(AsO4)2(HAsO4)2.5H2O was revised by the work of Yang et al. (2011).
A triclinic compound with the formula Ca5(AsO4)2(HAsO4)2.5H2O was obtained by dehydration of ferrarisite (Catti & Ivaldi, 1981).
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:4195:5
70668c71-c73d-4525-b9cc-b59b959ea0ee
IMA Classification of VladimiriteHide
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Approved, 'Grandfathered' (first described prior to 1959)
Classification of VladimiriteHide
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8.CJ.25
8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
J : With only large cations
39.2.2.1
39 : HYDRATED ACID PHOSPHATES,ARSENATES AND VANADATES
2 : (AB)5[HXO4]2[XO4]2.xH2O
20.2.10
20 : Arsenates (also arsenates with phosphate, but without other anions)
2 : Arsenates of Be, Mg, Ca or Ba
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Vld | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of VladimiriteHide
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Sub-Vitreous, Silky, Pearly
Transparency:
Transparent, Translucent
Colour:
Usually colorless to white, also pale rose
Density:
3.12 - 3.15 g/cm3 (Measured) 3.17 g/cm3 (Calculated)
Optical Data of VladimiriteHide
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RI values:
_n_α = 1.650 - 1.651 _n_β = 1.654 - 1.656 _n_γ = 1.656 - 1.661
2V:
Measured: 70° , Calculated: 76° to 84°
δ = 0.006 - 0.010
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Optical Extinction:
Z ^ c = 37°
Pleochroism:
Non-pleochroic
Chemistry of VladimiriteHide
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Mindat Formula:
Ca4(AsO4)2(AsO3OH) · 4H2O
Crystallography of VladimiriteHide
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Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 5.81 Å, b = 10.19 Å, c = 22.7 Å
β = 97.32°
Ratio:
a:b:c = 0.57 : 1 : 2.228
Unit Cell V:
1,332.98 ų (Calculated from Unit Cell)
Morphology:
Acicular to bladed crystals in open radial clusters.
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0018559 | Vladimirite | Yang H, Evans S H, Downs R T, Jenkins R A (2011) The crystal structure of vladimirite, with a revised chemical formula, Ca4(AsO4)2(AsO3OH)*4H2O The Canadian Mineralogist 49 1055-1064 | 2011 | Corbriza mine, Copiapo, Chile | 0 | 293 | |
| 0018560 | Vladimirite | Yang H, Evans S H, Downs R T, Jenkins R A (2011) The crystal structure of vladimirite, with a revised chemical formula, Ca4(AsO4)2(AsO3OH)*4H2O The Canadian Mineralogist 49 1055-1064 | 2011 | Ait Ahmane vein No. 53, Bou Azzer district, Morroco | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.09 Å | (40) |
| 4.80 Å | (40) |
| 4.15 Å | (80) |
| 4.00 Å | (80) |
| 3.28 Å | (80) |
| 3.20 Å | (40) |
| 3.04 Å | (60) |
| 2.79 Å | (100) |
Geological EnvironmentHide
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Type Occurrence of VladimiriteHide
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General Appearance of Type Material:
Acicular, radial aggregates.
Place of Conservation of Type Material:
Fersman Mineralogical Museum, Moscow, Russia, number 57263 (type).
Mining Museum, St. Petersburg, Russia, number 1220/1 (type).
Other Language Names for VladimiriteHide
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Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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| 8.CJ. | Airdite | Sr(V4+O)2(PO4)2 · 4H2O | Mon. m : B b |
|---|---|---|---|
| 8.CJ. | Dobšináite | Ca2Ca(AsO4)2 · 2H2O | Mon. 2/m : _P_21/b |
| 8.CJ. | Sainfeldite | Ca5(AsO4)2(AsO3OH)2 · 4H2O | Mon. 2/m : _B_2/b |
| 8.CJ. | Caesiumpharmacosiderite | CsFe4[(AsO4)3(OH)4] · 4H2O | Iso. 43_m_ : P_43_m |
| 8.CJ. | Jeankempite | Ca5(AsO4)2(HAsO4)2 · 7H2O | Tric. 1 : _P_1 |
| 8.CJ.05 | Stercorite | (NH4)Na(PO3OH) · 4H2O | Tric. 1 : _P_1 |
| 8.CJ.10 | Swaknoite | (NH4)2Ca(PO3OH)2 · H2O | Orth. |
| 8.CJ.10 | Mundrabillaite | (NH4)2Ca(PO3OH)2 · H2O | Mon. m : P m |
| 8.CJ.15 | Nabaphite | NaBaPO4 · 9H2O | Iso. 23 : _P_213 |
| 8.CJ.15 | Nastrophite | Na(Sr,Ba)PO4 · 9H2O | Iso. 23 : _P_213 |
| 8.CJ.20 | Haidingerite | CaHAsO4 · H2O | Orth. m m m _(_2/_m_2/_m_2/m ) : P b c n |
| 8.CJ.25 | Rhabdophane-(Y) | YPO4 · H2O | Hex. 622 : _P_6222 |
| 8.CJ.27 | Churchite-(Dy) | (Dy,Sm,Gd,Nd)PO4 · 2H2O | Mon. |
| 8.CJ.30 | Ferrarisite | Ca5(AsO4)2(HAsO4)2 · 9H2O | Tric. 1 : _P_1 |
| 8.CJ.35 | Fulbrightite | Ca(VO)2(AsO4)2 · 4H2O | Tric. 1 : _P_1 |
| 8.CJ.35 | Machatschkiite | (Ca,Na)6(AsO4)(HAsO4)3(PO4,SO4) · 15H2O | Trig. 3_m_ : R_3_c |
| 8.CJ.40 | Rauenthalite | Ca3(AsO4)2 · 10H2O | Tric. 1 : _P_1 |
| 8.CJ.40 | Phaunouxite | Ca3(AsO4)2 · 11H2O | Tric. |
| 8.CJ.45 | Brockite | (Ca,Th,Ce)PO4 · H2O | Hex. 622 : _P_6222 |
| 8.CJ.45 | Smirnovskite | (Th,Ca)PO4 · nH2O | Hex. 622 : _P_6222 |
| 8.CJ.45 | Rhabdophane-(Ce) | Ce(PO4) · 0.6H2O | Trig. 32 : _P_3121 |
| 8.CJ.45 | Rhabdophane-(La) | La(PO4) · H2O | Hex. 622 : _P_6222 |
| 8.CJ.45 | Rhabdophane-(Nd) | Nd(PO4) · H2O | Hex. 622 : _P_6222 |
| 8.CJ.45 | Tristramite | (Ca,U,Fe)(PO4,SO4) · 2H2O | Hex. 622 : _P_6222 |
| 8.CJ.45 | Grayite | (Th,Pb,Ca)(PO4) · H2O | Hex. 622 : _P_6222 |
| 8.CJ.45 | Štěpite | U(AsO3OH)2 · 4H2O | Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _I_41/a c d |
| 8.CJ.47 | Vysokýite | U4+[AsO2(OH)2]4 · 4H2O | Tric. 1 : _P_1 |
| 8.CJ.50 | Churchite-(Y) | Y(PO4) · 2H2O | Mon. 2/m : _B_2/b |
| 8.CJ.50 | Brushite | Ca(PO3OH) · 2H2O | Mon. m : B b |
| 8.CJ.50 | Ardealite | Ca2(PO3OH)(SO4) · 4H2O | Mon. m : B b |
| 8.CJ.50 | Pharmacolite | Ca(HAsO4) · 2H2O | Mon. m |
| 8.CJ.50 | Churchite-(Nd) | Nd(PO4) · 2H2O | Mon. |
| 8.CJ.55 | Mcnearite | NaCa5(AsO4)(HAsO4)4 · 4H2O | Tric. |
| 8.CJ.60 | Dorfmanite | Na2(PO3OH) · 2H2O | Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a |
| 8.CJ.65 | Sincosite | Ca(VO)2(PO4)2 · 5H2O | Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _P_42/n n m |
| 8.CJ.65 | Bariosincosite | Ba(VO)2(PO4)2 · 4H2O | Tet. |
| 8.CJ.70 | Catalanoite | Na2(PO3OH) · 8H2O | Orth. m m m _(_2/_m_2/_m_2/m ) : I b c a |
| 8.CJ.75 | Guérinite | Ca6(HAsO4)3(AsO4)2 · 10.5H2O | Mon. 2/m : _P_21/b |
| 8.CJ.85 | Ningyoite | (U,Ca,Ce)2(PO4)2 · 1-2H2O | Orth. |
Fluorescence of VladimiriteHide
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Other InformationHide
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Thermal Behaviour:
Fusible with difficulty.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for VladimiriteHide
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References for VladimiriteHide
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Reference List:
Yang, H., Evans, S. H., Downs, R. T., Jenkins, R. A. (2011) The crystal structure of vladimirite, with a revised chemical formula, Ca4(AsO4)2(AsO3OH)·4H2O. The Canadian Mineralogist, 49 (4) 1055-1064 doi:10.3749/canmin.49.4.1055
Localities for VladimiriteHide
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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Locality ListHide
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- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 
- Good crystals or important locality for species. 
- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.